Pure Resonance Audio RMA240BT 240W Bluetooth Rack Mixer Amplifier Black audio equipment with Bluetooth and USB ports on a white background
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Pure Resonance Audio RMA240BT 240W Bluetooth Rack Mixer Amplifier Audio power amplifier with remote control and cable on a white background
Pure Resonance Audio RMA240BT 240W Bluetooth Rack Mixer Amplifier Remote control with various buttons on a white background

Pure Resonance Audio RMA240BT 240W Bluetooth Rack Mixer Amplifier

Pure Resonance Audio RMA240BT 240W 5-channel Class D rack mixer amplifier with Bluetooth, USB, TF card and FM playback, 70V/4–16Ω speaker outputs, microphone and AUX inputs, emergency priority input, IR remote, and 1U rack design.

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Overview Video

Official Product Resources

PRA-RMA240BT Product Manual & Specs

View the official PRA-RMA240BT manual for product specifications, setup details, wiring guidance, and installation reference before ordering.

Open PRA-RMA240BT Manual PDF

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Pure Resonance Audio RMA240BT 240W Bluetooth Rack Mixer Amplifier

Product Details

240W Rack Mixer Amplifier for Music and Paging Systems

The Pure Resonance Audio RMA240BT is a 5-channel, 240W Class D rack-mount mixer amplifier designed for background music, paging, announcements, and distributed-audio systems. It combines amplification, microphone mixing, Bluetooth playback, USB and TF media support, FM radio, tone controls, and emergency-priority functionality in a compact 1U chassis.

The RMA240BT supports both 70V distributed speaker systems and compatible 4–16 ohm low-impedance speakers, making it useful for offices, restaurants, schools, retail spaces, meeting rooms, hospitality environments, and other multi-speaker audio installations.

Key Specifications

  • Model: RMA240BT
  • Amplifier type: 5-channel Class D rack mixer amplifier
  • Rated power output: 240W
  • Speaker outputs: 4–16 ohm / 70V
  • Microphone inputs: 4
  • AUX inputs: 2
  • Emergency input: 1 EMC priority input
  • Media playback: Bluetooth, USB thumb drive, TF card, and FM tuner
  • Frequency response: 80Hz–16kHz ±3dB
  • THD: 0.05%
  • Tone controls: Low ±10dB at 100Hz; High ±10dB at 10kHz
  • Cooling: Variable-speed forced-air fan
  • Protection: Overheat and short-circuit protection
  • Rack height: 1U

Who Should Choose the RMA240BT?

Choose the RMA240BT when you need one rack-mounted unit to handle background music, microphones, paging, and speaker amplification without adding a separate mixer and amplifier.

It is especially useful for multi-speaker commercial audio systems where Bluetooth playback, microphone announcements, and a 70V speaker line need to operate from the same equipment rack.

240W Class D Amplification

The RMA240BT provides 240W of rated Class D amplifier power in a compact 1U rack chassis.

Its Class D design helps reduce chassis size while providing enough output for many medium-size background music and paging systems.

70V and 4–16 Ohm Speaker Outputs

The amplifier supports 70V distributed-audio systems as well as compatible 4–16 ohm low-impedance speaker loads.

For 70V systems, add the transformer tap wattages of all connected speakers and keep the total system load within the amplifier's available power with appropriate operating headroom.

Bluetooth, USB, TF Card and FM Playback

The built-in multimedia player supports Bluetooth audio from compatible phones, tablets, and computers.

You can also play compatible audio from a USB thumb drive or TF card, or use the built-in FM tuner. Because FM reception depends heavily on location and interference, Pure Resonance Audio does not recommend FM as the primary source for critical playback.

Microphone and AUX Inputs

The RMA240BT provides four microphone inputs and two AUX inputs for connecting microphones, media players, conferencing equipment, and other compatible audio sources.

This allows music and paging sources to be mixed through a single rack-mounted amplifier.

Emergency Priority Input

A dedicated EMC emergency input is designed to override other audio sources when activated.

This allows a compatible emergency voice or announcement source to take priority over normal music and paging audio.

Audio Pre-Output

The RMA240BT includes an AUDIO OUT pre-output rated at approximately 1V / 100 ohms for connection to compatible downstream audio equipment when additional system expansion is required.

Front-Panel Tone Control

Low-frequency and high-frequency tone controls provide approximately ±10dB of adjustment at 100Hz and 10kHz.

This gives you basic tonal control to help match the system to the room and connected speakers.

Forced-Air Cooling and Protection

A variable-speed forced-air cooling fan helps manage operating temperature during extended use.

Built-in overheat and short-circuit protection provides additional protection for the amplifier during abnormal operating conditions.

1U Rack-Mount Design

The RMA240BT occupies only one rack unit, making it a practical choice for compact equipment racks and cabinets.

  • Height: 1.73" (44 mm)
  • Width: 19.05" (484 mm)
  • Depth: 11.61" (295 mm)
  • Weight: 11.50 lb (5.22 kg)

Power Requirements

  • Input voltage: 110–120V AC, 60Hz
  • Power consumption: 300W

What's Included?

  • 1 Pure Resonance Audio RMA240BT mixer amplifier
  • IR remote control
  • Power cord

Complete Your Audio System

Need Help Matching the RMA240BT?

Send Bear Security Shop your speaker models, quantity, transformer tap settings, and intended music or paging sources. We can help confirm total speaker load and whether the RMA240BT is the right amplifier for your system.

240W Rack Mixer Amplifier for Music and Paging Systems

The Pure Resonance Audio RMA240BT is a 5-channel, 240W Class D rack-mount mixer amplifier designed for background music, paging, announcements, and distributed-audio systems. It combines amplification, microphone mixing, Bluetooth playback, USB and TF media support, FM radio, tone controls, and emergency-priority functionality in a compact 1U chassis.

The RMA240BT supports both 70V distributed speaker systems and compatible 4–16 ohm low-impedance speakers, making it useful for offices, restaurants, schools, retail spaces, meeting rooms, hospitality environments, and other multi-speaker audio installations.

Key Specifications

  • Model: RMA240BT
  • Amplifier type: 5-channel Class D rack mixer amplifier
  • Rated power output: 240W
  • Speaker outputs: 4–16 ohm / 70V
  • Microphone inputs: 4
  • AUX inputs: 2
  • Emergency input: 1 EMC priority input
  • Media playback: Bluetooth, USB thumb drive, TF card, and FM tuner
  • Frequency response: 80Hz–16kHz ±3dB
  • THD: 0.05%
  • Tone controls: Low ±10dB at 100Hz; High ±10dB at 10kHz
  • Cooling: Variable-speed forced-air fan
  • Protection: Overheat and short-circuit protection
  • Rack height: 1U

Who Should Choose the RMA240BT?

Choose the RMA240BT when you need one rack-mounted unit to handle background music, microphones, paging, and speaker amplification without adding a separate mixer and amplifier.

It is especially useful for multi-speaker commercial audio systems where Bluetooth playback, microphone announcements, and a 70V speaker line need to operate from the same equipment rack.

240W Class D Amplification

The RMA240BT provides 240W of rated Class D amplifier power in a compact 1U rack chassis.

Its Class D design helps reduce chassis size while providing enough output for many medium-size background music and paging systems.

70V and 4–16 Ohm Speaker Outputs

The amplifier supports 70V distributed-audio systems as well as compatible 4–16 ohm low-impedance speaker loads.

For 70V systems, add the transformer tap wattages of all connected speakers and keep the total system load within the amplifier's available power with appropriate operating headroom.

Bluetooth, USB, TF Card and FM Playback

The built-in multimedia player supports Bluetooth audio from compatible phones, tablets, and computers.

You can also play compatible audio from a USB thumb drive or TF card, or use the built-in FM tuner. Because FM reception depends heavily on location and interference, Pure Resonance Audio does not recommend FM as the primary source for critical playback.

Microphone and AUX Inputs

The RMA240BT provides four microphone inputs and two AUX inputs for connecting microphones, media players, conferencing equipment, and other compatible audio sources.

This allows music and paging sources to be mixed through a single rack-mounted amplifier.

Emergency Priority Input

A dedicated EMC emergency input is designed to override other audio sources when activated.

This allows a compatible emergency voice or announcement source to take priority over normal music and paging audio.

Audio Pre-Output

The RMA240BT includes an AUDIO OUT pre-output rated at approximately 1V / 100 ohms for connection to compatible downstream audio equipment when additional system expansion is required.

Front-Panel Tone Control

Low-frequency and high-frequency tone controls provide approximately ±10dB of adjustment at 100Hz and 10kHz.

This gives you basic tonal control to help match the system to the room and connected speakers.

Forced-Air Cooling and Protection

A variable-speed forced-air cooling fan helps manage operating temperature during extended use.

Built-in overheat and short-circuit protection provides additional protection for the amplifier during abnormal operating conditions.

1U Rack-Mount Design

The RMA240BT occupies only one rack unit, making it a practical choice for compact equipment racks and cabinets.

  • Height: 1.73" (44 mm)
  • Width: 19.05" (484 mm)
  • Depth: 11.61" (295 mm)
  • Weight: 11.50 lb (5.22 kg)

Power Requirements

  • Input voltage: 110–120V AC, 60Hz
  • Power consumption: 300W

What's Included?

  • 1 Pure Resonance Audio RMA240BT mixer amplifier
  • IR remote control
  • Power cord

Complete Your Audio System

Need Help Matching the RMA240BT?

Send Bear Security Shop your speaker models, quantity, transformer tap settings, and intended music or paging sources. We can help confirm total speaker load and whether the RMA240BT is the right amplifier for your system.

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